Answer:
Your body is changing. It's natural for you to need more sleep now (even if you get to bed at a reasonable hour) because growing requires more energy. But sleep is not the only way to recharge. Breakfast is an energy booster, too. In fact, eating in the morning not only gives you more energy throughout the day, but will also help you concentrate better in class and help you control your appetite at lunch.
To catch the most zzz's and still fuel your body, plan and package a few snacks the night before. Fruit, yogurt, bagels, crackers, cheese, and sandwiches are all excellent (not to mention quick and easy) foods to munch while waiting for the bus or for a class to begin.